Sudoku Terminology |

A sudoku puzzle has 9 ROWS, 9 COLUMNS, and 9 BOXES. It also has 81 CELLS. The term 'squares' should be avoided as it is too ambiguous. |

BAND - a horizontal row of boxes |

BIVALUE CELL - a cell with only two possible candidates |

CANDIDATES - Possible values in any cell are its CANDIDATES |

CLUES (or GIVENS) - These are the cells that are already filled at the beginning of the sudoku puzzle |

GIVENS (or CLUES) - These are the cells that are already filled at the beginning of the sudoku puzzle |

HOUSE (or UNIT) - A HOUSE is another way of saying 'row, column, or box'. For example, "When a candidate appears twice in any HOUSE, it is strongly linked............" |

INTERSECTION - The
three cells where a row or column intersects a box |

STACK - a vertical column of boxes |

STRONG LINK - If a candidate is present exactly two times in any house, those two candidates are strongly linked within that house. One of them must exist, the other cannot . |

UNIT (or HOUSE) - A UNIT is another way of saying 'row, column, or box'. For example, "When a candidate appears twice in any UNIT, it is strongly linked............" |

WEAK LINK - When a candidate appears three or more times in a house, any two candidates in that house are weakly linked. If one exists, the other cannot, however it is possible that neither exists. |

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